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9441de4c38
This release is used in conjunction with the linux-sgx-driver Intial release: https://github.com/01org/linux-sgx-driver commit-id: 0e865ce5e6b297a787bcdc12d98bada8174be6d7 Intel-id: 33399 Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
/*
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* Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/**
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* File: sgx_trts_exception.h
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* Description:
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* Header file for custom exception handling support.
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*/
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#ifndef _SGX_TRTS_EXCEPTION_H_
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#define _SGX_TRTS_EXCEPTION_H_
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#include <stdint.h>
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#include <stddef.h>
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#include "sgx_defs.h"
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#define EXCEPTION_CONTINUE_SEARCH 0
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#define EXCEPTION_CONTINUE_EXECUTION -1
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typedef enum _sgx_exception_vector_t
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{
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SGX_EXCEPTION_VECTOR_DE = 0, /* DIV and DIV instructions */
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SGX_EXCEPTION_VECTOR_DB = 1, /* For Intel use only */
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SGX_EXCEPTION_VECTOR_BP = 3, /* INT 3 instruction */
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SGX_EXCEPTION_VECTOR_BR = 5, /* BOUND instruction */
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SGX_EXCEPTION_VECTOR_UD = 6, /* UD2 instruction or reserved opcode */
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SGX_EXCEPTION_VECTOR_MF = 16, /* x87 FPU floating-point or WAIT/FWAIT instruction */
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SGX_EXCEPTION_VECTOR_AC = 17, /* Any data reference in memory */
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SGX_EXCEPTION_VECTOR_XM = 19, /* SSE/SSE2/SSE3 floating-point instruction */
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} sgx_exception_vector_t;
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typedef enum _sgx_exception_type_t
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{
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SGX_EXCEPTION_HARDWARE = 3,
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SGX_EXCEPTION_SOFTWARE = 6,
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} sgx_exception_type_t;
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#if defined (_M_X64) || defined (__x86_64__)
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typedef struct _cpu_context_t
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{
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uint64_t rax;
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uint64_t rcx;
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uint64_t rdx;
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uint64_t rbx;
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uint64_t rsp;
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uint64_t rbp;
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uint64_t rsi;
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uint64_t rdi;
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uint64_t r8;
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uint64_t r9;
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uint64_t r10;
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uint64_t r11;
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uint64_t r12;
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uint64_t r13;
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uint64_t r14;
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uint64_t r15;
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uint64_t rflags;
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uint64_t rip;
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} sgx_cpu_context_t;
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#else
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typedef struct _cpu_context_t
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{
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uint32_t eax;
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uint32_t ecx;
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uint32_t edx;
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uint32_t ebx;
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uint32_t esp;
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uint32_t ebp;
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uint32_t esi;
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uint32_t edi;
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uint32_t eflags;
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uint32_t eip;
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} sgx_cpu_context_t;
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#endif
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typedef struct _exception_info_t
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{
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sgx_cpu_context_t cpu_context;
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sgx_exception_vector_t exception_vector;
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sgx_exception_type_t exception_type;
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} sgx_exception_info_t;
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typedef int (*sgx_exception_handler_t)(sgx_exception_info_t *info);
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* sgx_register_exception_handler()
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* register a custom exception handler
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* Parameter
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* is_first_handler - the order in which the handler should be called.
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* If the parameter is nonzero, the handler is the first handler to be called.
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* If the parameter is zero, the handler is the last handler to be called.
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* exception_handler - a pointer to the handler to be called.
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* Return Value
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* handler - success
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* NULL - fail
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*/
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void * SGXAPI sgx_register_exception_handler(int is_first_handler, sgx_exception_handler_t exception_handler);
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/* sgx_unregister_exception_handler()
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* unregister a custom exception handler.
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* Parameter
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* handler - a handler to the custom excepetion handler previously
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* registered using the sgx_register_exception_handler function.
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* Return Value
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* none zero - success
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* 0 - fail
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*/
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int SGXAPI sgx_unregister_exception_handler(void *handler);
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#ifdef __cplusplus
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}
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#endif
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#endif
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